package com.suyi.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    //===========================================服务降级===================================
    /**
     * 正常访问OK的方法
     * @param id
     * @return
     */
    public String paymentinfo_ok(Integer id){
        return "线程池： "+ Thread.currentThread().getName()+"  paymentinfo_ok,id: "+id+"\t"+"哈哈哈";
    }

    /**
     * 正常访问OK的方法
     * @param id
     * @return
     */
    @HystrixCommand(fallbackMethod = "paymentinfo_errorHandler",
            commandProperties = {@HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "5000")}
            )
    public String paymentinfo_error(Integer id){
        int timeNumber = 3;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池： "+ Thread.currentThread().getName()+"  paymentinfo_error,id: "+id+"\t"+"哈哈哈"+"  耗时: "+ timeNumber;
    }

    public String paymentinfo_errorHandler(Integer id){
        return "线程池： "+ Thread.currentThread().getName()+"  8001系统繁忙或者运行报错,id: "+id+"\t"+"哭唧唧";
    }

    //===================================================服务熔断===============================================
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60")//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable Integer id){
        if (id<0){
            throw new RuntimeException("********id 不能负数");
        }
        String serizal = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t" +" 调用成功，流水号： "+ serizal;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能负数，请稍后再试  " + id;
    }
}
